Battery Holder for Apple Vision Pro, Apple Vision Pro 2,M5,Portable Vision Pro Battery Accessories Case with Belt Clip and Cross-Body Strap, Apple VR Headset Battery Protective Cover (White)

Does exactly what you need it to - the only issue I have encountered is that the clip is quite tight, so you may struggle to hang it from your belt or waistline. but that is the point after all! Battery is very secure in the casing.

Does what it says on the tin. Chapter that other brands and works well.

Very good product. Very useful especially now in summer. I just clip in to my underwear and off i go walking with vision pro on and not worrying if I’m wearing shorts with pocket(s). Hehe